<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>React 17.0.1</title>
  <script src="js/react.development.js"></script>
  <script src="js/react-dom.development.js"></script>
  <script src="js/prop-types.js"></script>
  <script src="js/babel.min.js"></script>
</head>
<body>
  <div id="app"></div>

  <script type="text/babel">
    class Demo extends React.Component{
      render() {
        return (
          <h1>Hello React</h1>
        );
      }
    }

    ReactDOM.render(<Demo/>, document.getElementById('app'))
  </script>
</body>
</html>
